package cts.db;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * StuAnswer entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see cts.db.StuAnswer
 * @author MyEclipse Persistence Tools
 */

public class StuAnswerDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(StuAnswerDAO.class);
	// property constants
	public static final String _AANSWER = "AAnswer";
	public static final String _ASCORE = "AScore";

	public void save(StuAnswer transientInstance) {
		log.debug("saving StuAnswer instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(StuAnswer persistentInstance) {
		log.debug("deleting StuAnswer instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public StuAnswer findById(java.lang.Integer id) {
		log.debug("getting StuAnswer instance with id: " + id);
		try {
			StuAnswer instance = (StuAnswer) getSession().get(
					"cts.db.StuAnswer", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(StuAnswer instance) {
		log.debug("finding StuAnswer instance by example");
		try {
			List results = getSession().createCriteria("cts.db.StuAnswer")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding StuAnswer instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from StuAnswer as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByAAnswer(Object AAnswer) {
		return findByProperty(_AANSWER, AAnswer);
	}

	public List findByAScore(Object AScore) {
		return findByProperty(_ASCORE, AScore);
	}

	public List findAll() {
		log.debug("finding all StuAnswer instances");
		try {
			String queryString = "from StuAnswer";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public StuAnswer merge(StuAnswer detachedInstance) {
		log.debug("merging StuAnswer instance");
		try {
			StuAnswer result = (StuAnswer) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(StuAnswer instance) {
		log.debug("attaching dirty StuAnswer instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(StuAnswer instance) {
		log.debug("attaching clean StuAnswer instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}